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-   -   LC9 video (https://www.thirdgen.org/forums/ltx-lsx/757657-lc9-video.html)

johnw999 12-01-2018 03:44 PM
LC9 video
 
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86White_T/A305 12-05-2018 11:30 PM
Re: LC9 video
 
Congrats on the swap,looks clean. now add a turbo to it and fly! :)

QwkTrip 12-05-2018 11:52 PM
Re: LC9 video
 
So how many smiles per mile you gettin' now with the LS compared to the old 305? That's the real measure of success! :thumbsup:

86White_T/A305 12-05-2018 11:59 PM
Re: LC9 video
 
Originally Posted by QwkTrip (Post 6266705)
So how many smiles per mile you gettin' now with the LS compared to the old 305? That's the real measure of success! :thumbsup:
Hes probably still out driving it because its so much more fuel efficient vs the lg4 laughing his way past gas stations lol

johnw999 12-06-2018 07:39 AM
Re: LC9 video
 
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GreenieG 01-05-2021 10:03 PM
Re: LC9 video
 
do your stock gauges work still?

johnw999 01-05-2021 10:43 PM
Re: LC9 video
 
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GreenieG 01-05-2021 11:11 PM
Re: LC9 video
 
yea thats what im looking for when i do a swap, I've never liked the look of after market gauges surrounding the dead stock ones.

Thirdgen89GTA 01-06-2021 07:32 AM
Re: LC9 video
 
Originally Posted by johnw999 (Post 6266740)
The VVT and DoD were the first to go when I got the engine. Maybe dyno’s should include hp, tq, and mpg!

I’d love a turbo, but I don’t have enough time to mess with exhaust routing, relocating the battery, etc. I have long tube headers... maybe a rear turbo?

PS lots of smiles. :driving:
I can see why people get rid of the DoD. But VVT can be useful even in a performance situation. Can widen the torque band significantly. Not sure why people have such hate for it.

slowbluw91 01-14-2021 10:17 AM
Re: LC9 video
 
Originally Posted by Thirdgen89GTA (Post 6410002)
I can see why people get rid of the DoD. But VVT can be useful even in a performance situation. Can widen the torque band significantly. Not sure why people have such hate for it.
Don't know if it is hate, but it has to be removed when doing anything other than a stock drop in motor and ecm,harness,etc. I ran into this when building my Gen 4 6.0L, (cant remember if there were any performance VVT Cams?), but the Holley Terminator i am using would not control the VVT. so i converted it to the 3 bolt style cam. I agree with the benefits of it absolutely, just that the aftermarket has not caught up to optimizing the application for certain applications.

OP: Congrats on the swap! what intake is that, dont think i've seen it before?

dixiebandit69 01-14-2021 06:23 PM
Re: LC9 video
 
Originally Posted by Thirdgen89GTA (Post 6410002)
I can see why people get rid of the DoD. But VVT can be useful even in a performance situation. Can widen the torque band significantly. Not sure why people have such hate for it.
One thing, is that you can't use VVT in a manual transmission car.
I don't know exactly what the problem is, but you can't get VVT/ AFM unless it's automatic.

I'd assume it needs some kind of feedback from the transmission for load calculation purposes, but I might be wrong.

vorteciroc 01-14-2021 10:14 PM
Re: LC9 video
 
Originally Posted by dixiebandit69 (Post 6411064)
One thing, is that you can't use VVT in a manual transmission car.
I don't know exactly what the problem is, but you can't get VVT/ AFM unless it's automatic.

I'd assume it needs some kind of feedback from the transmission for load calculation purposes, but I might be wrong.
I did not get to work on, or over see the TR6060 + VVT or DOD/ AFM testing that was being done...
Also the BS reason that GM stated the TR6060 vehicle would not have VVT or DOD/ AFM is because a lighter vehicle does not need the VVT to accelerate the vehicle; nor the DOD/ AFM for fuel savings (Gas guzzler tax).

From the data that I was able to read on this... It appeared that the combination of these parts made for frequent valve to piston contact, broken lifters and bent push-rods on a high-revving decel in gear.

dixiebandit69 01-17-2021 02:53 PM
Re: LC9 video
 
Thanks for your insider info, vorteciroc! Eye-opening, as usual! Whenever I see that you've posted something, I always read it, even if the subject isn't something I was interested in.

Originally Posted by vorteciroc (Post 6411089)

From the data that I was able to read on this... It appeared that the combination of these parts made for frequent valve to piston contact, broken lifters and bent push-rods on a high-revving decel in gear.
Oof, can't have that when I swap my 'Bird; I downshift for engine braking a lot...

johnw999 01-17-2021 04:51 PM
Re: LC9 video
 
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johnw999 01-17-2021 05:01 PM
Re: LC9 video
 
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vorteciroc 01-18-2021 12:15 AM
Re: LC9 video
 
Originally Posted by Thirdgen89GTA (Post 6410002)
I can see why people get rid of the DoD. But VVT can be useful even in a performance situation. Can widen the torque band significantly. Not sure why people have such hate for it.
Since these engine are of the Over-Head Valve design with 16 valves and only one camshaft...
The current engine arrangement only allows for Advancing and Retarding of the "installed position" relative to the Lobe Separation Angle (Camshaft Phasing).
This works nicely with a smaller camshaft in comparison to what most people here would swap in their engine.

There is simply not enough piston to valve clearance with a larger "performance" camshaft, to use the VVT system... damage will ensue!
Yes I know there are products that restrict the range of motion for the camshaft phaser... however, camshaft profile will still need to be more on the conservative side.

This almost makes me wants to install a camshaft 40 degrees advanced in to some LS engine (No VVT) with a good .649"/ .619" and 239/ 254 @0.050" 114+3...
And then just laugh as I turn the crankshaft over and over... clank, chunk, snap, drop, thud. :nod:


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